Some assume that rapid melting of the Arctic permafrost could trigger a catastrophic “economic timebomb”. What is / are the reasons behind such assumptions?
1. It will disturb the exploitation of new gas and oilfields
2. It will increase the emission of Methane, a GHG in atmospehre
3. It will increase the emission of Carbon Dioxide, a GHG in atmosphere
Choose the correct option from the codes given below:

Answer: [B] Only 2 & 3

Carbon dioxide (CO2) and methane emissions from thawing permafrost could amplify warming due to anthropogenic greenhouse gas emissions. This amplification is called the permafrost carbon feedback. Kindly go thru the following links:
http://www.desmogblog.com/2013/07/26/new-nature-study-calls-melting-underwater-arctic-permafrost-economic-time-bomb
http://www.theguardian.com/environment/2013/jul/24/arctic-thawing-permafrost-climate-change

This question is a part of GKToday's Integrated IAS General Studies Module